From 4acf71c89b5ef5e2fe8c1a3d7ecf6031e191463c Mon Sep 17 00:00:00 2001
From: Kenneth Graunke <kenneth@whitecape.org>
Date: Mon, 28 Dec 2015 14:20:28 -0800
Subject: [PATCH] drirc: Disable ARB_blend_func_extended for Heaven 4.0/Valley
 1.0.
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Unigine Heaven 4.0 and Valley 1.0 use dual color blending but don't
specify which fragment shader output is which, so there's at best a
50/50 chance of us guessing it correctly.  This is invalid.

Unigine fixed this in 4.1 and 1.1 versions over a year and a half ago,
but hasn't actually released them for whatever reason.  So, add the
workaround back so that it works for most people.

Fixes Heaven 4.0/Valley 1.0 rendering on Ivybridge.  For whatever
reason, Broadwell worked.  4.1 and 1.1 have always worked.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=92233
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: mesa-stable@lists.freedesktop.org
---
 src/mesa/drivers/dri/common/drirc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/mesa/drivers/dri/common/drirc b/src/mesa/drivers/dri/common/drirc
index bb840eaba94..e1874c3f1dc 100644
--- a/src/mesa/drivers/dri/common/drirc
+++ b/src/mesa/drivers/dri/common/drirc
@@ -37,18 +37,26 @@ TODO: document the other workarounds.
 
         <application name="Unigine Heaven (32-bit)" executable="heaven_x86">
             <option name="allow_glsl_extension_directive_midshader" value="true" />
+            <!-- remove disable_blend_func_extended if 4.1 ever comes out -->
+            <option name="disable_blend_func_extended" value="true" />
 	</application>
 
         <application name="Unigine Heaven (64-bit)" executable="heaven_x64">
             <option name="allow_glsl_extension_directive_midshader" value="true" />
+            <!-- remove disable_blend_func_extended if 4.1 ever comes out -->
+            <option name="disable_blend_func_extended" value="true" />
 	</application>
 
         <application name="Unigine Valley (32-bit)" executable="valley_x86">
             <option name="allow_glsl_extension_directive_midshader" value="true" />
+            <!-- remove disable_blend_func_extended if 1.1 ever comes out -->
+            <option name="disable_blend_func_extended" value="true" />
 	</application>
 
         <application name="Unigine Valley (64-bit)" executable="valley_x64">
             <option name="allow_glsl_extension_directive_midshader" value="true" />
+            <!-- remove disable_blend_func_extended if 1.1 ever comes out -->
+            <option name="disable_blend_func_extended" value="true" />
 	</application>
 
         <application name="Unigine OilRush (32-bit)" executable="OilRush_x86">
-- 
2.30.2